The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

Bhaskara I was a famous in the field of
Ans:Astronomy

The density of milk is measured by
Ans:Lactometre

Fountain pen was invented by
Ans:L.E.waterman

The acid used in car battery is
Ans:Sulphuric Acid

The steam engine was invented by
Ans:James Watt

Sodium carbonate is commonly called
Ans:Washing soda

Brass is alloy of
Ans:Cu and Zn

Capillary action of liquid can be explained on the basis of its
Ans:Surface Tension

The branch of science deals with biology chemistry ,genetics and biochemistry is
Ans:Molecular Biology

Galvanisation of iron sheets is done by
Ans:Zn plating

Cellular organisms use —to carry the genetic information that direct the synthesis of protein
Ans:mRNA

Cariolis force arises due to
Ans:Rotation of frames

Which radioactive ray is more penetrating
Ans:Gamma rays

How many colours the sunlight spectrum has
Ans:Seven

Which type fire extinguisher is used for petroleum fire
Ans:Powder type

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

The most abundant element in plants
Ans:Carbon

Polio Myelitus is caused by
Ans:Entero virus

Who was the inventor of Black Box Flight recorder
Ans:David Warren

The disease caused by the deficiency of Nicotinic acid
Ans:Pellagra

Huntingsons disease affects
Ans:Nervous system

Alternating current is converted into direct current by using
Ans:Rectifier

From which plant Asafoetida is prepared
Ans:Fenula asafoetida

The gas usually filled in the electric bulb is
Ans:Nitrogen

Auxine,giberellin and cytokinine are
Ans:Plant hormones

The type of mirrors used in the headlamp of cars is
Ans:Parabolic concave

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

When a body is in force fall under gravity its apparent weight will be
Ans:Zero

The shape of water drops are spherical because of
Ans:Surface tension of water

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

Rectifiers are used to convert
Ans:Alternating current to Direct Current

Magnetism at the centre of a bar magnet is
Ans:Zero

Who isolated insulin ,the hormone to control diabetes
Ans:Frederick Banting and Charles Best

The scientist who is known as Second Darwin
Ans:Ernest Mayor

Which element is known as little silver
Ans:Platinum

Blue green bacteria are also known as
Ans:Cyanobacteria

Who discovered Electro Cardiogram
Ans:William Einthoven

Red data book provides data on
Ans:Endangered plants and animals

What is hematite and magnetite
Ans:Ores of iron

The absorption of ink by blotting paper involves
Ans:Capillary action

The structure of atom was discovered by
Ans:Niels Bohr

Television signals cannot be received ordinarily beyond a particular distance due to
Ans:Curvature of Earth

Hyperglycemia is a condition associated with hormone
Ans:Insulin Hormone

Which part of the human body directly absorb Ozone
Ans:Cornea of eyes

What condition is caused by iodine deficiency during pregnancy and is
characterized by stunted growth,deafness,and mental retardation in children
Ans:Cretinism

Which element is required as a component of blood hemoglobin
Ans:Iron

On a rainy day small oil films on water show brilliant colours .This is due to
Ans:Interference

RADAR is used for
Ans:Detecting and locating the position of objects such as aeroplanes

Selenium deficiency leads to
Ans:liver necrosis

Which vitamins is essential for the absorption of calcium from the intestinal part
Ans:Vitamin D

Heavy alcohol consumption leads to
Ans:Cirrhosis

Colour blind people cannot distinguish —-colours
Ans:Green,Red

Struggle for Existence is one of the main concept of
Ans:Darwinian Evolution Theory

What is the colour of Ozone
Ans:Blue

The rarest gas element in the atmosphere of Earth
Ans:Radon

Who discovered Bacteria
Ans:Antone van Leuwanhock

Who is called as the father of first aid
Ans:Dr.Ismark

Which animal has the normal gestation period of 22-24 months
Ans:Elephant

Indhira Gandhi is the name of a variety of
Ans:Hibiscus

An instrument that can accelerate charged particles to high energy particles
Ans:Cyclotron

What is a super cooled liquid
Ans:Glass

Who invented lift
Ans:Otis

In the bionmeal systems of naming ,the first part of the name of a organism is
Ans:Genus name

The nucleic acid of AIDS virus is
Ans:Single stranded RNA

The main gas emitted during the combustion of petroleum fuels
Ans:Carbone Dioxide

Enzymes are basically
Ans:Proteins

Sound of frequency below 20Hz is called
Ans:Infrasonic

The temperature at which Celsius and Fahrenheit scales are equal
Ans:40

Bradycardia is a condition of heart with
Ans:Low heart beat

Oedema is abnormal accumulation of tissue fluid beneath the skin and reason is
Ans:Due to Kidney and heart disorder

—are the medium of transport of Ascaris
Ans:Flies

Kwashiorkor is due to deficiency of
Ans:Proteins and essential fatty acid

Scurvy is disorder due to the deficiency of
Ans:Ascorbic acid

Xerophthalmia is common children due to the deficiency of
Ans:Retinol

The founder of Electromagnetic Wave Theory
Ans:Jamed Clerk Maxwell

The particles with integral spin values are called
Ans:Bosons

The particle with half integral spin values are called
Ans:Fermions

The collision in with both kinetic energy and momentum are conserved are called
Ans: Elastic collision

The most of the mass of rotating wheels are concentrated at the rim because
Ans:To increase the moment of inertia

50. The clock which cannot be used in spaceship orbiting round the Earth are
Ans:Pendulum clocks

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

Well defined nucleus is absent in lower organisms coming under
Ans:Prokaryte

Cholera is caused by a bacterium belongs to the group
Ans:Vibrio

Light from the Sun reaches earth in nearly
Ans:8 minutes

Survival of the fittest is a theory of evolution put forward by
Ans:Charles Darwin

A compound which contains only Hydrogen and Carbon is called a
Ans:Hydrocarbon

The liquid used to preserve specimens of plants and animals
Ans:Formalin

Mass number of an element having 147 neutrons and atomic number 92 will be
Ans:239

Auriscope is used to detect
Ans:Ear disorders

Descending order of the hierarchy of levels of biological classification is
Ans:Kingdom,phylum,class,order,family,genus,species

The response of a plant to heat is called
Ans:Thermotropism

All cells are derived from the existing cell is the part of —theory
Ans:cell theory

Mirage is due to
Ans:unequal heating of different parts of the atmosphere

Stars which appear single to the naked eye but are double when seen through a telescope are
Ans:binary star

The inherited traits of an organism are controlled by
Ans:Genes

The most abundant element in the moon
Ans:Oxygen

The gas formed when Potassium permanganate is heated
Ans:Oxygen

The line that separates atmosphere and outer space
Ans:Karman line

Papiloma is the virus that cause
Ans:Wart disease

Which hormone is related to the disease Tetany
Ans:Parathormone

The cell wall of plant cells is mainly composed of
Ans:Cellulose

What type of mirror is used in the rear view mirror of automobiles
Ans:Convex

Instrument used in submarines to view the surface of water
Ans:Periscope

Which has the biggest eye among the land mammals
Ans:Horse

The most abundant metal in Earth
Ans:Iron

The prolonging of sound due to reflection is called
Ans:Reverberation

Who was the first to state that the earth revolves round the sun
Ans:Copernicus

Who discovered Doppler Effect
Ans:Christian Doppler

The process of water becoming vapour is
Ans:Evaporation

Which element has the lowest melting point
Ans:Mercury

Amount of water in the atmosphere is known as
Ans:Humidity

Visible part of sun is
Ans:Photosphere

Which is known as the king of inventions
Ans:Steam engine

Ozone quantity is measured by the unit of
Ans:Dobson

Which element has the least ionization energy
Ans:Iron

The word cell was first used by
Ans:Robert Hooke

Which plastids help plants in the process of photosynthesis
Ans:Chloroplast

What is the colour of light used in automobiles during snow fall
Ans:Yellow

Who discovered the bacteria that cause cholera
Ans:Robert Koch

The foundation of germ theory of disease was set down by
Ans:Louis Pasteur

The plants which is poisonous and also used as medicine
Ans:Castor and datura

Light year is a unit of
Ans:distance

The power of lens is stated in
Ans:Dioptre

Nuclear sizes are expressed in a unit named
Ans:Fermi

The vitamin which is destroyed by heat is
Ans:Vitamin C

Chronic consumption of excess selenium can lead to
Ans:Muscle weakness

PH of pure water is
Ans:7

Which trace mineral is a component of the enzyme that activates vitamin A in the eye
Ans:Zinc

The science of calculating the age of trees by counting the annual rings
Ans:Dendrochronology

Brilliance of diamonds is due to the phenomenon of
Ans:Total internal reflection

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

Ancient chemistry was given the name Alchemy
Ans:Arabs

Which disease is caused by Micro bacterium Leprae
Ans:Leprosy

Pepsin a digestive enzyme is produced in
Ans:Stomach

Ammonia is produced through
Ans:Haeber process

Which light has the longest wavelength
Ans:Red

The fast breeder nuclear reactor of India KAMINI is located at
Ans:Kalpakkom

Number of films passing through a film projector in a second
Ans:24

Which natural substance has least expansion
Ans:Diamond

Which bird is known as American Ostrich
Ans:Rhea

The blood cells in perform the function of transport of oxygen is
Ans:RBC

35Cl17 and 37Cl15 are
Ans:Isotopes

Which is known as wonder metal brand metal of future
Ans:Titanium

Molecules responsible for the smell of fruits
Ans:Ester

The instrument that converts mechanical energy into electrical energy
Ans:Dynamo

One fathom is equal to —feet
Ans:6 feet

Which animal can produce two sounds at one time
Ans:Dolphin

Which animal can produce two types of milk
Ans:Kangaroo

Common cold is caused by
Ans:Rhino virus

The minimum distance of reflecting surface from the source of sound for echo
Ans:17m

Which colour absorb the maximum amount of heat
Ans:Black

In an electric motor electrical energy is mainly to
Ans:Mechanical energy

Fathom is the unit of —
Ans:Depth

Light year is a measurement of
Ans:Stellar distance

Very small time intervals are accurately measured by
Ans:Atomic clocks

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

Soda water contains —acid
Ans:Carbonic acid

Permanent hardness of water may be removed by the addition of
Ans:Sodium Carbonate

Which element was to be discovered first in the chromospheres of the sun
Ans:Helium

Production of chlorofluorocarbons gas which is proposed to be banned in India is used in which of the domestic products
Ans:Refrigerator

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

Which bird egg that has the longest incubation period
Ans:Albatross

The element with highest boiling boint
Ans:Tungsten

When a moving bus stops suddenly the passengers are pushed forward because of the
Ans:Inertia

The most abundant metal in human body
Ans:Calcium

Which isotope of carbon is used for Carbon dating
Ans:Carbon-14

Which is the only bird that can see blue colour
Ans:Owl

Pure gold is—carat
Ans:24 Carat

Chemically respiration is
Ans:Oxidation reaction

Which is known as the the age of reptiles
Ans:Mezozoic era

The infective stage of Wuchereria bancrofti is
Ans:Microfilaria

New world hook worms otherwise known as
Ans:Necator americanus

Cycle of Ross is associated with a disease called
Ans:Malaria

Endo-erythrocytic cycle in Malaria is also known as
Ans:Cycle of Golgi

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

The most abundant element in Petroleum
Ans:Carbon

Which organic acid is realized by a bee when it sticks an organism
Ans:Methanoic acid

Bladder worms or cycticerus larvae are the larval forms of
Ans:Taenia solium